Marilyn Hummel (1927-2013) was a resident of Bonny Doon from 1968 until her death in 2013. Adapted from her obituary:
Marilyn Hummel held strong beliefs in the importance of social justice and environmental protection. She served as President of the League of Women Voters of Santa Cruz County; officer in the Rural Bonny Doon Association; office manager and Executive Committee member of the Santa Cruz Group of the Ventana Chapter of the Sierra Club; member of the Santa Cruz County Planning Commission; and member and Chair of the Board of Commissioners of the Santa Cruz County Housing Authority.

One of her most significant personal accomplishments was saving an isolated and fragile outcropping of the Santa Cruz Sand Hills. As private citizens, Marilyn and a small group of other dedicated volunteers worked for years to halt the clearing of what would later be recognized by the state as one of the ten most important botanical sites in California. The area is now forever protected as the Bonny Doon Ecological Reserve.
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Contents:
Box #1 - Bonny Doon history: interviews, photos, history of schools, businesses, fire department, etc.

Box #2 - Bonny Doon Ecological Reserve: background material

Box #3 - Bonny Doon Ecological Reserve: correspondence, reports, etc.

Box #4 - Bonny Doon Ecological Reserve: court documents and related BDER documents

Adapted from her obituary:
Marilyn Hummel held strong beliefs in the importance of social justice and environmental protection. She served as President of the League of Women Voters of Santa Cruz County; officer in the Rural Bonny Doon Association; office manager and Executive Committee member of the Santa Cruz Group of the Ventana Chapter of the Sierra Club; member of the Santa Cruz County Planning Commission; and member and Chair of the Board of Commissioners of the Santa Cruz County Housing Authority.